sugar, salt, syrup, butter and Carnation milk together
in a large saucepan.
over medium heat, stirring constantly, until the soft
ball stage is reached (236 degrees F. on a candy thermometer).
from heat and let cool.
in vanilla and nuts if using. Beat until thick and creamy.
into buttered pan (7 inch square or 8 inch round), cool,
and cut into squares.